Actually those examples don't show up that well. I resized them a bit for ease of uploading. They look better on my computer.
I am really happy with the camera. I don't have any external light or strobe. The diffuser on the housing works really well. I would imagine that the video quality would be greatly enhanced in the ocean with an additional light.
The one downside with this camera is that you can't zoom whilst in video mode. I don't think this will be a big issue underwater.